816330363666 has 32 divisors (see below), whose sum is σ = 1677130221888. Its totient is φ = 264747786240.

The previous prime is 816330363643. The next prime is 816330363671. The reversal of 816330363666 is 666363033618.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6089475 + ... + 6222086.

It is an arithmetic number, because the mean of its divisors is an integer number (52410319434).

Almost surely, 2^816330363666 is an apocalyptic number.

816330363666 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

816330363666 is an abundant number, since it is smaller than the sum of its proper divisors (860799858222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

816330363666 is a wasteful number, since it uses less digits than its factorization.

816330363666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12311866.

The product of its (nonzero) digits is 5038848, while the sum is 51.

The spelling of 816330363666 in words is "eight hundred sixteen billion, three hundred thirty million, three hundred sixty-three thousand, six hundred sixty-six".